Internet in Prague — 90 Mbps average, fiber expanding fast
Prague’s internet is reliable. Fixed broadband averages 90 Mbps in the center, with fiber connections hitting 500 Mbps+ in newer buildings. Mobile 4G/5G averages 80 Mbps. Coworking spaces and cafes typically offer 100-300 Mbps WiFi. Connectivity is not an issue here for remote work.
The weak spot: Czech mobile data is expensive by EU standards. A 10 GB prepaid plan costs CZK 400-500 (EUR 16-20), compared to EUR 10 in Portugal or Spain. Budget for a fixed connection if you’re staying more than a week.
Providers and options
Average Speed
90 Mbps
Reliability
High
| Provider | Type | Speed | Note |
|---|---|---|---|
| O2 Czech Republic | Fixed + Mobile | 100-500 Mbps fiber, 80 Mbps 4G | Largest fixed broadband provider. Fiber in most of Prague center. Prepaid SIM with 5 GB from CZK 300. |
| Vodafone CZ | Fixed + Mobile | 100-300 Mbps fiber, 70 Mbps 4G | Best prepaid data deals. 10 GB for CZK 400. Good 5G coverage in Praha 1-8. |
| T-Mobile CZ | Fixed + Mobile | 100-500 Mbps fiber, 90 Mbps 5G | Fastest 5G network. Pricier than Vodafone. Unlimited data from CZK 749/month. |
| Nordic Telecom | Fixed wireless | 50-100 Mbps | Alternative for buildings without fiber. Uses radio links. Available in outer districts. |
Getting a SIM card
Buy a prepaid SIM at any Vodafone, O2, or T-Mobile shop — they’re on every major street. Bring your passport. No Czech address required. Activation takes 15 minutes.
Best deal for short stays (1-4 weeks): Vodafone prepaid, 10 GB for CZK 400 (EUR 16). Top up online.
Best deal for longer stays (1+ months): T-Mobile unlimited data plan at CZK 749/month (EUR 30). No contract required on prepaid.
eSIM option: All three carriers support eSIM. Activate through their apps — no store visit needed. Useful if your phone supports dual SIM and you want to keep your home number active.
Tips for reliable connectivity
Backup plan: Always have a mobile hotspot ready. Prague cafe WiFi is generally good, but speeds drop during lunch hours (12:00-13:00) when everyone connects.
VPN: Public WiFi in Prague is widespread but unencrypted at most cafes. Use a VPN for sensitive work. Choose a provider with servers in Frankfurt or Vienna for lowest latency.
Speed test before committing: If you’re renting an apartment, ask the landlord for a speed test screenshot. Buildings in Žižkov and parts of Smíchov still run on old ADSL — check before signing.
Best-connected neighborhoods
Karlín (Praha 8): Rebuilt after 2002 floods with modern fiber infrastructure. Most apartments get 300-500 Mbps. The best neighborhood for internet reliability.
Vinohrady (Praha 2): Mixed infrastructure — newer buildings have fiber, older Art Nouveau buildings may have VDSL (30-50 Mbps). Ask before renting.
Holešovice (Praha 7): Good fiber coverage in the area around Vltavská metro. The DOX gallery neighborhood has several cafes with 150+ Mbps WiFi.
Avoid for internet: Historic buildings in Malá Strana and parts of Staré Město often have poor wiring and limited options for fiber installation.